Moment of silence

Gary Hershorn, Reuters

Former first lady Laura Bush (L-R), former President George W. Bush, first lady Michelle Obama and President Barack Obama observe the first moment of silence during ceremonies marking the 10th anniversary of the 9/11 attacks on the World Trade Center, in New York.

Former first lady Laura Bush (L-R), former President George W. Bush, first lady Michelle Obama and President Barack Obama observe the first moment of silence during ceremonies marking the 10th anniversary of the 9/11 attacks on the World Trade Center, in New York. (Gary Hershorn, Reuters)

Former first lady Laura Bush (L-R), former President George W. Bush, first lady Michelle Obama and President Barack Obama observe the first moment of silence during ceremonies marking the 10th anniversary of the 9/11 attacks on the World Trade Center, in New York.